[Coco] An HDBDOS DW4 poll

[Christopher Smith]

I wasn't going to go that far, but if I'm not mistaken the custom is to put the RSDOS virtual-floppy partitions on the end of the device.  I'm thinking that they could go on the beginning, and OS-9 could have the end.  With some modifications to both sides, that would permit HDBDOS to treat devices of various sizes similarly as long as there was always space for the entire set of virual floppies -- which is not really all that much space these days.  I wouldn't mind just allocating all of that space on every one of my devices.  That would also permit one of the virtual floppy devices to boot OS-9 in the usual way, as long as that copy of OS-9 understood the geometry of its disk partition.

Chris

----- Original Message -----
> From: "Wayne Campbell" <asa.rand at gmail.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Monday, September 23, 2013 10:43:58 PM
> Subject: Re: [Coco] An HDBDOS DW4 poll
> 
> I think it would take something like a RS-DOS emulator that runs
> under OS-9
> to make it so you could ROM OS-9 and not boot from floppy, then
> emulate
> RS-DOS/BASIC in a window. It might also require something like
> cocoboot to
> build a ROM image that could provide a more efficient loading system
> for
> the OS.
> 
> Wayne
>  On Sep 23, 2013 11:20 PM, "Christopher Smith" <csmith at wolfram.com>
>  wrote:
> 
> > Nothing yet, but I'd be tempted to do 2.  No point in directly
> > twiddling
> > values in memory when you can just let the server straighten things
> > out for
> > you.  For Drivewire.
> >
> > Of course, for physical disks, the answer would be more difficult.
> >  On the
> > one hand, I'm tempted to eventually set up a mass storage device
> > with
> > partitioning, but on the other hand I don't like the idea that each
> > different size of device would need what amounts to basically a
> > different
> > ROM configuration, and I also don't like the idea of still having
> > to boot
> > from a floppy, as seems to be common with single-partition hard
> > drives with
> > only an OS-9 volume, though I may be mistaken there...
> >
> > Chris
> >
> > ----- Original Message -----
> > > From: "Bill Pierce" <ooogalapasooo at aol.com>
> > > To: coco at maltedmedia.com
> > > Sent: Monday, September 23, 2013 8:00:08 PM
> > > Subject: [Coco] An HDBDOS DW4 poll
> > >
> > >
> > > In writing the tutorial on setting up and using drivewire, Ihave
> > > a
> > > question/poll for all hdbdos/dw users
> > > It's about setting the offset for partitions in HDBDOS
> > >
> > > When you are using hdbdos under DW do you...
> > >
> > > 1. Use RSDOS/OS9 partitioned VHDs with the offset poke directly
> > > into
> > > the hdbdos rom
> > >
> > > 2. Use RSDOS/OS9 partitioned VHDs with the offset set in th DW
> > > server's "Drive Parameters"
> > >
> > > 3. Use only single partition VHDs for RSDOS and OS9 with no
> > > offsets
> > >
> > > 4. Just use floppy disk images because you never can figure out
> > > the
> > > offsets for partitions or know nothing about them
> > >
> > > This info would be helpful.
> > >
> > > Bill Pierce
> > > My Music from the Tandy/Radio Shack Color Computer 2 & 3
> > > https://sites.google.com/site/dabarnstudio/
> > > Co-Webmaster of The TRS-80 Color Computer Archive
> > > http://www.colorcomputerarchive.com/
> > > Co-Contributor, Co-Editor for CocoPedia
> > > http://www.cocopedia.com/wiki/index.php/Main_Page
> > > E-Mail: ooogalapasooo at aol.com
> > >
> > >
> > > --
> > > Coco mailing list
> > > Coco at maltedmedia.com
> > > http://five.pairlist.net/mailman/listinfo/coco
> > >
> >
> > --
> > Christopher Smith
> > Systems Engineer, Wolfram Research
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> >
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
> 

-- 
Christopher Smith
Systems Engineer, Wolfram Research